AU2549335A
(en )
1936-09-17
Improvements in and connected with sound pickup devices
AU2157935A
(en )
1936-03-12
Improvements in or connected with microphones and like acoustic devices
AU2552535A
(en )
1936-11-12
Improvements in and relating to sound reproducing devices
CA347750A
(en )
1935-01-22
Sound collecting and radiating device
AU2438435A
(en )
1936-09-24
Improvements in and connected with carburettors
CA331204A
(en )
1933-03-28
Turn and stop signal
AU1323433A
(en )
1934-07-05
Improvements in or relating to loudspeakers and like acoustic reproducing devices
CA348417A
(en )
1935-02-26
Indicating and recording device
AU1810934A
(en )
1935-03-01
Improvement in loudspeaker
AU290194B2
(en )
1935-03-25
Improvement in structural unit and structure incorporating same
CA335981A
(en )
1933-09-26
Sound reading device
AU2417035A
(en )
1936-03-26
Improvements in and connected with skyline advertising
AU111185B2
(en )
1940-08-15
Improvements in and connected with pickup devices insound reproducing machines
AU2502235A
(en )
1936-09-17
Improvements in and connected with flexible couplings
CA354683A
(en )
1935-12-10
Subtracting and totalling device
CA348848A
(en )
1935-03-12
Trunk and mounting
CA353009A
(en )
1935-09-17
Sound reproducer
CA347380A
(en )
1935-01-08
Sound reproducer
AU2306435A
(en )
1936-06-11
Improvements in or relating to telegraphones and like magnetic recording devices
AU2279335A
(en )
1936-06-11
Improvements in or relating to telegraphones and like magnetic recording devices
CA338281A
(en )
1934-01-02
Sight and sound reproducing device
AU3555263A
(en )
1935-03-25
Improvement in structural unit and structure incorporating same
CA325657A
(en )
1932-09-06
Toy and sporting device
CA330238A
(en )
1933-02-14
Radiotelegraphy and radiotelephony
AU928832A
(en )
1933-03-23
Improvements in and connected with pulleys